Dust-collector.



F. G. HEMMEE.

DUST COLLECTOR.

APPLICATION FILED Alum, 1909.

Patented Feb. 15, 1910.

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FREDERICK c. HEMMER, or BRADFORD, r ENNsYLvANIA', AssIeNoa r0 STERLING vacuum CLEANER COMPANY, or BRADFORD, PENNSYLVANIA, A CORPORATION OF WEST VIRGINIA.

DUST-COLLECTOR.

Specification of Letters Patent. Patented. Fgb, 15, 191i),

' Application filed August 5, 1909. Serial No. 511,378.

To all whom it may concern:

Be it known that I, FREDERICK C. HEM- MER, a citizen of the United States, residing at Bradford, in the countyof McKean and State of Pennsylvania, have invented certain new and useful Improvements in Dust-Collectors, of which the following is a specification. My invention relates to dust collectors and more especially to dust collectors in use with a vacuum cleaner. An object ofmy invention is to provide a. dust collector which may be installed in connection with a vacuum cleaner without materially altering the same. I

A further object of myinvention is to provide a dust collector, of a simple and durable construction, and so made that the parts of the same may be readily separated and assembled;

My invention consists generally of an outer receptacle within which is arranged a sack like strainer adapted to contain a smaller apertured receptacle, said outer receptacle having an inlet and outlet pipe.

In the accompanying. drawings, formin a part of this specification, and in which like numerals designate like parts throughout the same, Figure l is a perspective view of my .dust collector showing the same as applied to a vacuum cleaner. Fig. 2 is a vertical longitudinal sectional view of Fig. 1, parts thereof being removed. Fig. 3 is a perspective view of the smaller receptacle of my dust collector. Fig. 4: is a perspective view of the strainer.

In the drawings, 1 designatesa flat board or the like, formlng the bottom of a vacuum cleaner. Upon the bottom 1 is mounted the driving mechanism casin 2 by means of the supporting member 3. i supporting brace 4t connects the driving mechanismcasing 2 with a vacuum pump 5, which is operated by a train of gears within the casing 2, thepitman 6 being connected to one of the gears and to the plston rod 7 of the pump 5.

8 designates the cylindrical outer receptacle of the dust collector having the outivardly projecting base 9, and a centrally arranged reduced portion 10, forming the shoulder 11 within the same. The upper edge of the outer receptacle 8' is bent out wardly to form the flange 12, upon which rests the outwardly projecting flange 13 of the cover 14. The cover-14 is further provided with a downwardly projecting circular portion'15, adapted to fit within the upper end of the receptacle 8 and to form an air-tight connection therewith. A handle 16 is arranged-upon the outer surface of the cover 14, whereby the cover may be readily removed.- Within the outer receptacle 8 thereis arranged a sack like strainer 17, comprising a rin 18 upon which-is secured the body port1on' 19 of the strainer, which I preferably construct of a textile fabric having suflicient thickness and strength, although I may employ any suitable material. As shown in Fig. 2, the ring 18 rests upon the shoulder 11, of the outer receptacle 8, and the strainer is su ported thereby. Within the sack-like. strainer 17 there is arranged the cylindrical cup-shaped receptacle 20 having the closed lower end 21. and the open, upper, outwardly flanged end 22 below and near which are arranged the spaced apertures 23 upon the receptacle 20. As shown in Fig. 2, the smaller receptacle 20 is arranged within the sack-like strainer 17 and has its flanged upper edge 22 resting upon the ring 18, which in turn rests upon the shoulder 11 as hereinabove described. Above the receptacle 20, the receptacle 8 is provided with an inlet pipe 25, and it is further provided below the same and near its bottom 9, with the discharge pipe 26. The pipes 25 and26 have secured thereon, the pipes or hose 27 and 28 respectively, the hose 27 beingprovided at its end with a suitable nozzle (not shown) for application to the carpet or other article being cleaned, while the pipe 28 communicates with the pump 5 as shown at 29.

'In the use of my strainer, a vacuum is created in the outer receptacle 8, by the operation of the vacuum pum 5, having a connection with the receptac e 8 through the hose 28. The air charged with dust .is then forced into the casing 8 through the inlet pipe 25 and travels downwardly in receptacle 20 until it en ages the lower portion of the same. tained in the air strike against the lower portion of the receptacle 20 and are collected within the same. The smaller particles which remain within the air, are drawn up and through the apertures 23 upon the receptacle 20, into the sack-like The arger particles constrainer 17 and are collected within the same, as the air passes through it, to the vacuum pump.

From the foregoing operation, it will be obvious that the receptacle 20 serves as a protector for the strainer 22, the pressure and the greater part of the dust being taken up by said receptacle 20 and the strainer being freed from unnecessary strains which might distort or tear it.

Having fully described my invention, I claim:

A dust collector of the character described, comprising an outer receptacle, pro vided with an inlet and outlet pipe, near the upper and lower ends thereof respectively, said outer receptacle having the lower end thereof closed and a detachable cover adapted to close the upper end thereof, said outer receptacle being further provided with an inwardly projecting shoulder near the upper end thereof, a sack-like strainer comprislng a ring and a body ortion secured to said ring, arranged within said outer receptacle and having said ring sup orted by said in \va-rdly projecting shouldlr, a smaller receptacle having a closed lower end and an open outwardly flanged upper end, arranged within said sack-like strainer, said outwardly flanged upperend being arranged upon said ring of said sack like strainer, and said smaller receptacle being provided with a plurality of aperturesnear the open end thereof, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

FREDERICK C. HEMMER. \Vitnesses a \V. J i Mi Lm K 1 1x, .l'l. Bow-11:. 

